<template>
    <div>

        <!-- 商品列表区域 -->
        <div class="goods-list">
            <router-link tag="div" :to="'/home/goodsinfo/' + item.id" class="goods-item" v-for="item in goodslist" :key="item.id">
                <img :src="item.img_url" alt="">
                <h1 class="title">{{ item.title }}</h1>
                <div class="info">
                    <p class="price">
                        <span class="new">￥{{ item.sell_price }}</span>
                        <span class="old">￥{{ item.market_price }}</span>
                    </p>
                    <p class="sell">
                        <span>热卖中</span>
                        <span>剩{{ item.stock_quantity }}件</span>
                    </p>
                </div>
            </router-link>


            <mt-button type="danger" size="large" style="margin-top: 10px;" @click="getMore">加载更多</mt-button>
        </div>

    </div>
</template>

<script>
    export default {
        data() {
            return {
                page: 1, // 默认展示第一页的数据
                goodslist: [], // 商品列表
                isloaded: false // 节流阀，默认为false,表示没有加载完毕
            };
        },
        created() {
            this.getGoodsListByPage();
        },
        methods: {
            async getGoodsListByPage() {
                // 根据页码获取 商品列表
                const { data } = await this.$http.get(
                    "/api/getgoods?pageindex=" + this.page
                );
                if (data.status === 0) {
                    // 当获取到的 数组长度为0，表示数据已经加载完毕了
                    if (data.message.length <= 0) {
                        // 设置isloaded true,表示没有新数据了
                        this.isloaded = true;
                    }
                    this.goodslist = this.goodslist.concat(data.message);
                }
            },
            getMore() {
                // 如果为true，表示数据已经加载完毕了，此时直接return
                if (this.isloaded) return;
                // 点击加载更多的商品
                this.page++;
                this.getGoodsListByPage();
            }
        }
    };
</script>

<style lang="scss" scoped>
    .goods-list {
        // 设置父盒子为弹性盒模型
        display: flex;
        // 默认flex 布局的盒子，内部的子元素不会换行，可以使用下面的属性使其换行
        flex-wrap: wrap;
        justify-content: space-between;
        padding: 7px;
        padding-top: 0;
        .goods-item {
            width: 49%;
            border: 1px solid #ccc;
            margin-top: 7px;
            box-shadow: 0 0 7px #ccc;
            padding: 2px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;

            img {
                width: 100%;
                min-height: 170px;
            }
            .title {
                font-size: 14px;
            }
            .info {
                background-color: #eee;
                overflow: hidden;
                p {
                    margin: 3px;
                }
                .price {
                    .new {
                        color: red;
                        font-size: 16px;
                        font-weight: bold;
                        margin-right: 10px;
                    }
                    .old {
                        text-decoration: line-through;
                        font-size: 12px;
                    }
                }
                .sell {
                    display: flex;
                    justify-content: space-between;
                    font-size: 13px;
                }
            }
        }
    }
</style>
